Understanding the Heart of the Matter: The 7.62x39mm Cartridge
History and Ballistics
To truly appreciate the AR That Shoots 7.62x39mm, a thorough understanding of the ammunition is essential. The 7.62x39mm cartridge has a rich history, inextricably linked with the Cold War and the iconic AK-47. It was developed in the Soviet Union as a medium-power cartridge designed for the AK-47 assault rifle. The intention was to bridge the gap between the pistol cartridge used in submachine guns and the full-power rifle cartridges used in larger military rifles. This new cartridge quickly found favor due to its effectiveness at intermediate ranges.
The ballistic characteristics of the 7.62x39mm round are crucial. Typically, it fires a bullet weighing around 123 grains, achieving a muzzle velocity that varies depending on the specific load, often in the range of 2,300 to 2,400 feet per second. This results in a muzzle energy that is significantly higher than that of the 5.56x45mm NATO round, often used in standard AR-15s. The effective range is generally considered to be around 300 to 400 meters, making it a capable round for both close-quarters combat and engagements at moderate distances.
Performance and Comparisons
The performance of the 7.62x39mm makes it a versatile choice for several applications. Hunters frequently utilize the round for medium-sized game, while self-defense enthusiasts may choose it for its proven stopping power. Compared to the lighter 5.56x45mm NATO, the 7.62x39mm offers superior energy on target, especially at intermediate distances. The heavier bullet weight also tends to be less susceptible to wind drift. However, its trajectory is somewhat less flat, and recoil is noticeably more substantial.
Marrying the AR with a Different Round: Challenges and Adaptations
Design Challenges
The AR platform is known for its modularity, but adapting it to a cartridge like the 7.62x39mm is not a straightforward conversion. Several design and engineering challenges must be overcome to ensure reliable function. The 7.62x39mm round is physically larger than the 5.56x45mm NATO round for which the AR-15 was originally designed. This creates implications for every critical component.
The bolt is perhaps the most crucial component to adapt. The bolt face needs to be redesigned to accommodate the larger case head of the 7.62x39mm cartridge. Furthermore, the extractor needs to be robust to handle the increased pressures and the rimmed case of the cartridge. The firing pin also may require modification for optimum function.
The magazine well also undergoes changes. The existing magazine well on the AR platform is not typically compatible with the curved magazines required by the 7.62x39mm cartridge. Some manufacturers offer AR platforms specifically designed to accept existing AK-47 magazines, while others create AR-15 magazines specifically designed to work with the platform. This often requires alterations to the lower receiver and the magazine release system.
Finally, the buffer and recoil spring also merit consideration. The 7.62x39mm cartridge’s recoil impulse is significantly different than that of the 5.56x45mm NATO. To ensure reliable cycling and mitigate excessive wear and tear, it is often advised to use a heavier buffer and an optimized spring specifically designed for the 7.62x39mm.
Manufacturing and Design Choices
Manufacturers have met these challenges in different ways. Some have developed AR-style rifles that take standard AK-47 magazines, streamlining ammunition acquisition and reducing the complexity of magazine compatibility. Others have produced proprietary magazines that fit the AR platform, optimizing them for feeding the 7.62x39mm round. The variations highlight that the AR That Shoots 7.62x39mm is not always a direct bolt-on conversion.
The Benefits of Choosing the AR That Shoots 7.62x39mm
Accessory Availability and Ergonomics
Despite the challenges, there are notable advantages in choosing an AR That Shoots 7.62x39mm. These benefits contribute to the rifle’s appeal for specific uses.
The AR platform is known for its wide array of readily available accessories and replacement parts. Everything from handguards, stocks, and optics mounts to triggers, grips, and lights can be swapped out to customize the rifle to the individual user’s preferences. This modularity grants extraordinary versatility and enables the rifle owner to tailor it to their specific needs and the type of shooting they do.
The ergonomic design of the AR platform is another advantage. The placement of controls, such as the safety selector, magazine release, and charging handle, are designed for intuitive operation. Furthermore, the ability to adjust the length of pull with different stocks allows shooters of all sizes to find a comfortable and effective shooting position. This adaptability enhances accuracy, comfort, and overall user experience.
Accuracy and Commonality
Accuracy can be another considerable benefit. AR platforms, when properly assembled and equipped with quality barrels, are known for their accuracy potential. The 7.62x39mm cartridge, while not typically a match-grade round, can be capable of accurate shots, especially at intermediate distances. Combining the inherent accuracy potential of the AR platform with the 7.62x39mm’s ballistic characteristics can result in an effective rifle for hunting, target shooting, and defensive purposes.
The commonality of controls and the operating system are another major advantage. Owners already familiar with the AR platform will experience an easy transition. The manual of arms, including how the controls are used, and the way the gun is field stripped and maintained, remains fundamentally similar. This reduces the learning curve and streamlines training for shooters already accustomed to the AR platform.
Navigating the Potential Drawbacks of the Combination
Reliability and Magazine Concerns
While the AR That Shoots 7.62x39mm has many advantages, several factors merit thorough consideration. Being aware of these potential issues is crucial to making an informed purchasing decision.
Reliability is an essential consideration. The conversion from 5.56 to 7.62x39mm sometimes encounters issues related to feeding and extraction. The specific issues and severity often depend on the quality of the parts used, the design of the magazine, and the overall tolerances of the rifle. It is paramount to thoroughly research the rifle’s track record for reliability before making a purchase.
Magazine compatibility also represents a potential concern. Magazines designed for the 7.62x39mm cartridge are often curved. However, the exact curvature and feed lips vary depending on the magazine’s design and manufacture. Some magazines feed more reliably than others. Therefore, it’s vital to choose high-quality magazines specifically made for the AR platform and the 7.62x39mm cartridge.
Recoil, Cost, and Wear
The recoil from the 7.62x39mm cartridge is more significant than that of the 5.56x45mm NATO. This can affect shooter comfort, especially during extended periods of shooting. While not unmanageable, the increased recoil requires the shooter to maintain a firm grip and practice controlled follow-up shots. A heavier buffer and spring combination may also help in mitigating this aspect.
Cost is another relevant consideration. The initial purchase price of a 7.62x39mm AR platform may be comparable to a standard AR-15. However, the cost of ammunition is usually higher than that of 5.56x45mm NATO. Shooters who plan to practice frequently should factor in the ongoing expense of ammunition, which can affect the overall cost of ownership.
Finally, wear and tear may be increased in the AR that shoots 7.62x39mm. The increased pressure from the 7.62x39mm cartridge may result in faster wear on specific components, especially in the bolt, barrel, and gas system. Selecting quality parts and performing routine maintenance are crucial to maintaining the longevity of the rifle.
Making a Smart Purchase: A Guide for Potential Buyers
Research and Component Quality
If you are considering an AR That Shoots 7.62x39mm, careful planning is crucial to ensure you select a reliable, effective rifle. Several factors should guide your purchasing decision.
Reputation matters. Research different manufacturers that specialize in producing these rifles. Seek out reviews and feedback from owners. Reputable manufacturers often use high-quality components, design and test their rifles thoroughly, and offer solid customer service. Consider brands with a known history of producing reliable AR platforms.
Quality components directly impact performance. Prioritize rifles built with quality barrels, bolts, and other internal components. The barrel’s material, manufacturing process, and overall construction greatly influence accuracy and longevity. The bolt’s design, including its heat treatment and material, is critical for reliability and long-term durability. The gas system must be properly engineered to handle the pressures of the 7.62x39mm.
Testing, Barrel Twist, and Magazines
Independent testing and review are vital. Before making a purchase, search for independent reviews and performance tests of the specific rifle model you are considering. These sources often provide unbiased assessments of accuracy, reliability, and overall performance. Consider reading reviews from multiple sources to get a more complete picture of the rifle’s strengths and weaknesses.
Consider the barrel twist rate. This crucial aspect relates to the bullet’s stability. Barrel twist rates determine the rate at which the rifling spins the bullet, which directly impacts the bullet’s stability and accuracy in flight. Consult manufacturer specifications or gunsmith advice to determine the optimal barrel twist rate for the typical bullet weights you intend to use.
Magazine selection is paramount. High-quality magazines specifically designed for the AR platform and the 7.62x39mm are necessary for reliable feeding. Research different magazine options, and prioritize those known for their reliability and durability. Consider brands that have established a reputation for reliability.
Using and Maintaining Your 7.62x39mm AR Platform
Shooting Techniques and Cleaning
After acquiring your AR That Shoots 7.62x39mm, the practical aspects of shooting and maintenance demand attention. Following these suggestions can guarantee a more satisfying and safer ownership experience.
Developing proper shooting techniques is crucial to make the most of the rifle. Maintain a stable shooting position, a firm grip, and a proper sight picture. Practice breathing control and trigger squeeze to enhance accuracy. Consider seeking training from a qualified firearms instructor to hone your shooting skills.
Regular cleaning and maintenance are necessary for the rifle’s longevity and reliability. Disassemble the rifle according to the manufacturer’s instructions. Clean the barrel, bolt, and gas system to remove carbon buildup and other contaminants. Lubricate moving parts with a high-quality gun oil.
Troubleshooting
Troubleshooting is another area to consider. Knowing how to identify and address common problems can help keep your rifle running smoothly. Failure to feed, failure to extract, and failures to eject are common issues in the AR platform. Learn about those issues, learn possible solutions, and bring the rifle to a qualified gunsmith if you cannot fix the problem.
Conclusion: The Place of the AR That Shoots 7.62x39mm
The AR That Shoots 7.62x39mm presents a unique blend of historical significance and modern design. The combination allows users to take advantage of the AR platform’s modularity. These rifles are capable of providing effective solutions for hunting, self-defense, and recreational shooting. However, these are not free of challenges and need to be thoroughly evaluated.
Careful consideration should always precede any firearms purchase. Consider both the pros and cons of the AR That Shoots 7.62x39mm. Evaluate whether its attributes match your needs and interests.
If the rifle seems appealing to you, consider the buying guidelines in this article. Evaluate reputable brands and quality parts to guarantee that you select a rifle that will function reliably. Seek advice from experienced shooters and gunsmiths for the best results.
The AR That Shoots 7.62x39mm occupies a fascinating position within the firearms world. By understanding its history, its design, and its capabilities, you can make a confident and informed decision.
